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SDNSIZE—Digital Certificate SDN Size

Valid on z/OS.

Use the SDNSIZE control option to set the maximum size for the SDN (Subject’s Distinguished Name) and SN.IDN (Serial Number.Issuer’s Distinguished Name) fields in a digital certificate that is added to the security file. SDNSIZE should be set to 255 until all systems sharing the security file are running CA Top Secret release 15 and higher.

Note: SDNSIZE also controls the maximum size of the data specified with the SDNFILTR and IDNFILTR keywords on a TSS command.

This control option uses the Parameter file entry method.

This control option has the following format:

SDNSIZE(nnnn) 
nnnn

Specifies the maximum SDN and SN.IDN field size for a digital certificate.

Limits: 255 or 1024

Default: 255

Example: SDNSIZE control option

This example indicates that the larger SDN and SN.IDN fields supported:

SDNSIZE(1024)